Float-valve



' To all whom it may concern:

DE LOYD K. COOKQOF MAQUOKETA, IOWA.

FLOAT-VALVE.

Specification of Letters Patent.

Patented July22, 1919.

Application filed March 8, 1919. Serial No. 281,496. I

Be it 'known that I, DE LOYI) K. Cook, a citizen of the United States, residing at Maquoketa, in the county of Jackson and State of Iowa, have invented certain new and useful Improvements in Float-Valves. of which the following is a specification.

This invention relates to float valves and has as its primary object to provide an improved float valve of the leverless type designed for employment in stock-watering tanks and the like. v

One object of'the invention is to provide a float valve which may be placed upon the market separate from the tank and installed by purchasers in various sizes and kinds of tanks, the valve parts being capable of adjustment so that the water in the tank in wh1ch the valve is installed may be maintained at any desired level, practically .regardless of the capacity or depth of the tank.

Another object of the invention is to provide a float valve of this type which may be readily repaired when necessary and which will not be liable to cause a stoppage of the water-supply pipe should the valve deteriorate or become broken.

A further object of the invention is to provide within the valve casing a battle which is designed to break the force of the inflowing head of water if the valve is installed in a high pressure system; which will serve as a guide for the valve stem so as to insure of proper seating of the valve; and, which will serve further to prevent the valve dropping down into the watersupply pipe and clogging the same if the valve should deteriorate or become torn loose from its stem.

In the accompanying drawings:

Figure 1 is a vertical sectional view through the valve embodying the present invention installed in an ordinary stolck watering tank;

Fig. 2 is a detail vertical sectional view through the valve and the casing therefor;

Fig. 3 is a perspective view of the member above referred to and which serves the triple function ascribed to it.

In the drawings the numeral 1 indicates the tank in which the valve is installed and which tank may be a stock-watering tank or any other water supply tank and of any desired capacity and construction. The numeral 2 indicates the water supply pipe or main through which water is conducted from the source of supply to the tank and this pipe is provided with a vertically extending branch 3 fitted through an opening in the bottom of the tank and secured in a water-tight manner by any suitable means ordinarily employed for this purpose. The valve casing is indicated in general by the numeral 5 and this casing at its lower portion is interiorly threaded as at 6 to fit threads 7 formed upon the exterior of the branch 3 at the upper end of the said branch. The upper end of the casing 5 is reduced in diameter and interiorly threaded as indicated by the numeral 8 so as to receive a short water discharge pipe which is indicated by the numeral 9, this pipe being threaded at its lower end into the reduced end S of the valve casing 5 and having its lower extremity ground to provide a valve seat indicated by the numeral 10.

The valve proper is indicated by the numenu 11 and the same is preferably in the nature of a spherical body of rubber or other suitable material formed with :1 diametrical opening 12 through which is loosely fitted the lower portion of the stem 7 of the valve, WlllCll stem is indicated in genera] by the numeral 13. The said lower portion of the stem of the valve is threaded as indicated by the numeral 14 and fitted thereon are upper and lower nuts 15 and 16 respectively, which. may be screwed up or down upon the said stem and which. when the valve body 11 has been adjusted to the desired position upon the lower portion of the valve stem, may be turned so as to bear against the upper and under sides of the said valve body so as to hold the same at its position of adjustment. ()t course. when the stem 13 is in elevated position. the valve 11 will rest against its seat 10 and the flow of water to the tank through the discharge pipe 9 will be cut oil. but when the valve stem 13 is lowered as will be presently eX- plained, the valve 11 will be moved away from its seat so as to permit of the flow of water to the tank. The valve stem 13 extends a suitable distance above the upper or discharge end of the pipe 9 and the upper portion of this stem is threaded as indicated by the numeral 17. The numeral 18 indicates a float whlch may be of any desired construction and size and which is provided centrally with an opening 19 through which the upper portion of the stem 13 is fitted in the manner clearly shown in Fig. 1 of the drawings. Upper and lower nuts and 21 are threaded onto the said upper portion of the stem and bear respectively against the upper and under sides of the float 18 and may be adjusted in the same manner as the nuts 15 and 16 so as to provide for vertical adjustment of the float u n the valve stem and for securing of the oat at the desired point of adjustment.

Fig. 3 of the drawings lllustrates a bafile and guide in the form of a disk 22 circular in contour and provided with a radial 1ncision 23 extending inwardly from its periphery, the peripheral portlon of the disk being distorted as indicated by the numeral 24 substantially into the form of a splral, so

. as to adapt it to be screwed into the threads 6 within the lower portion of the valve casing, and to come off with said casing when removed from the pipe 3. Centrally the disk is formed with an opening 25 through which the lower portion of the valve stem 13 extends, the stem being thus guided in its up and down movement so as to properly center the valve 11' as ,it moves to its seat. To permit the passage of water past "the disk 22, the same is formed with an addltional number of openings 26, as clearly shown in the said Fig. 3.

From the foregoing description of the invention it will be understood that not only does the disk 22 serve to guide the valve stem 13 in its up and down movement so as to center the valve as it moves to its seat,

but furthermore this disk will retain the valve 11 within the valve casing even should the valve disintegrate or me torn or broken from its stem and thus the valve cannot fall down into the supply pipe 2 and clog the same. Furthermore, the disk 22 serves as a baflle to destroy the too rapid flow of water from the supply pipe to the valve casing and discharge ipe 9 and thus will break the force of the fibw if the valve is installed in a high pressure system.

Of course, when the float '18 is adjusted upwardly upon the valve stem, the line of water level will be correspondingly raised and on the other hand if a lower water level is desired the float 18 may be moved downwardly upon the stem. For this purpose also, if the range of adjustment of the float itself upon the stem is not sufiicient, the

valve 11 may be adjusted upwardly or downwardly upon the stem so as to increase the range of adjustment of the float and eorre spondingly increase the distance between maximum .high and minimum low water level within the tank. .7

It will be observed that adjustment of the float on the stem can be made without disconnecti the parts. But when this adjustment is not sufiicient or when access to the valve and its seat is desired, the

5 will be unscrewed from the branch 3 without interrupting the water tight connection of the latter with the tank. The entire attachment may now be removed, the disk remaining within the threads 6 of the casing. The operator will now pass a nail through one of the openings 26, and turn the disk so as to run it out of the threads, when it comes off the lower end of the stem 13, and the latter can immediately be pushed downward to give access to the nuts 15 and 16. After parts have been repaired or replaced, they are reassembled by a reversal of this operation. It will therefore be clear that the device is a complete unit which can be placed upon the market as an attachment and readily applied by unskilled labor to the threaded end of the pipe 3 in any tank, provided only that the internal threads 6 are of, a proper standard gage to fit the external threads 7; and even without such fit these parts might be connected by a reducer or a proper coupling.

Having thus described the invention, what is claimed as new is: As an article of manufacture, a float valve structure comprising a casing internally threaded at its lower end and having a valve seat within its upper end, a stem extending entirely through and above the casing and threaded at both ends, a pair of nuts on the upper thread, a float adjustably held between them, 'a pair of nuts on the lower thread, a ball valve adjustably held between them and loose Within the casing, and a baffle comprising a disk split radially and distorted to make its edge spiral and adapted to fit the threads within the casing below said valve, the body of the disk being perforated for 'the' passage of water and having a central opening for said stem.

In testimony whereof I aflix my signature. DE LOYD K. COOK. [L s.] 

